1928493402 has 48 divisors (see below), whose sum is σ = 4250811936. Its totient is φ = 582832800.

The previous prime is 1928493383. The next prime is 1928493403. The reversal of 1928493402 is 2043948291.

It is not an unprimeable number, because it can be changed into a prime (1928493403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284877 + ... + 291567.

It is an arithmetic number, because the mean of its divisors is an integer number (88558582).

Almost surely, 2^1928493402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1928493402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2125405968).

1928493402 is an abundant number, since it is smaller than the sum of its proper divisors (2322318534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1928493402 is a wasteful number, since it uses less digits than its factorization.

1928493402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 7104 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1928493402 is about 43914.6149021029. The cubic root of 1928493402 is about 1244.7230131698.

It can be divided in two parts, 192849 and 3402, that added together give a triangular number (196251 = T₆₂₆).

The spelling of 1928493402 in words is "one billion, nine hundred twenty-eight million, four hundred ninety-three thousand, four hundred two".